DELTA 1 DEB, 21461
Orbit data source: Space-Track
DELTA 1 DEB, 21461 is space debris in SSO originally from a launch on Thu, 12 Jun 1975 UTC launched from the Air Force Western Test Range (AFWTR). Debris objects in space refer to the collection of defunct objects orbiting the Earth. Examples of debris include non-operational satellites, rocket bodies, and fragments generated from explosions, collisions, or faulty payload assembly.
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21461 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
USRelated business
Manufacturer
Unknown
Mission
Spacecraft
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Unknown
Launch site
Object type
Shape & HBR
Unknown shape, 0.1 m
Radar Cross Section
Small (<0.1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 DELTA 1 DEB
1 21461U 75052EV 25300.24141420 .00000154 00000-0 43210-3 0 9994
2 21461 99.7294 47.2955 0204940 240.1031 188.0381 13.20436940659953Epoch: 2025-10-27T05:47Z
TLE epoch observation values (Epoch: 2025-10-27T05:47:38.186Z)
Latitude
65.96144°
Longitude
-97.94879°
Altitude
1,347.885 km
Speed
7.117 km/s
True Right ascension
01h 39m 13s
True Declination
65° 50' 35"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
10:53:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,335.297 km
Perigee altitude
1,025.488 km
Semi-major axis
7,558.529 km
Eccentricity
0.02049
Inclination
99.7294°
RAAN
47.2955°
Arg. of periapsis
240.1031°
True anomaly
187.71785°
Mean anomaly
188.0381°
Eccentric anomaly
187.87717°
Mean motion
3.30284 °/min
Orbital period
109 mins
BSTAR
0.0004321
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Other satellites on launch #52 in the year 1975 (1975-06-12 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.DELTA 1 DEB Visibility forecast
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Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-10-27 18:49:26.670Z | 44.986° NE | 2025-10-27 18:54:26.670Z | 92.027° ESE | 21.497° | 2025-10-27 18:59:26.670Z | 140.084° SSE |
| 12 mins | 2025-10-27 20:36:26.670Z | 6.669° NNE | 2025-10-27 20:42:26.670Z | 287.094° WNW | 41.991° | 2025-10-27 20:48:26.670Z | 212.044° SW |
| 7 mins | 2025-10-28 05:17:26.670Z | 81.012° E | 2025-10-28 05:20:26.670Z | 54.599° ENE | 17.53° | 2025-10-28 05:24:26.670Z | 21.005° NNE |
| 14 mins | 2025-10-28 07:00:26.670Z | 158.846° S | 2025-10-28 07:06:26.670Z | 109.328° ESE | 44.679° | 2025-10-28 07:14:26.670Z | 346.958° N |
| 8 mins | 2025-10-28 08:51:26.670Z | 239.495° WSW | 2025-10-28 08:54:26.670Z | 266.016° W | 18.098° | 2025-10-28 08:59:26.670Z | 308.627° NW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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